The goal of this little book is to help you find your way around the chaotic world of the financial markets. Stop trusting other people's opinions and make your own. Here are tools to explore the markets and find answers to your fundamental stock-market questions.We'll start with the S&P 500, my favorite index and the world's economic barometer. This powerful and telling index comprise some 80% of all equity market value in the US and 30% of its revenue...